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Add example for dead code elimination for JSX v4. #593

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Merged
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Sep 28, 2022
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Add example for dead code elimination for JSX v4. #593

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17 changes: 16 additions & 1 deletion analysis/reanalyze/examples/deadcode/expected/deadcode.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -1101,6 +1101,9 @@
addRecordLabelDeclaration text ImportMyBanner.res:5:16 path:+ImportMyBanner.message
addValueReference ImportMyBanner.res:12:4 --> ImportMyBanner.res:7:0
Scanning JSResource.cmt Source:JSResource.res
Scanning JsxV4.cmt Source:JsxV4.res
addValueDeclaration +make JsxV4.res:4:23 path:+JsxV4.C
addValueReference JsxV4.res:4:36 --> React.res:3:0
Scanning LetPrivate.cmt Source:LetPrivate.res
addValueDeclaration +y LetPrivate.res:7:4 path:+LetPrivate
addValueDeclaration +x LetPrivate.res:3:6 path:+LetPrivate.local_1
Expand Down Expand Up @@ -1887,6 +1890,7 @@ File References
ImportJsValue.res -->>
ImportMyBanner.res -->>
JSResource.res -->>
JsxV4.res -->> React.res
LetPrivate.res -->>
ModuleAliases.res -->>
ModuleAliases2.res -->>
Expand Down Expand Up @@ -2121,6 +2125,7 @@ File References
Dead Value +ImportMyBanner.+make: 0 references () [0]
Live Value +ImportMyBanner.+make: 0 references () [0]
Dead RecordLabel +ImportMyBanner.message.text: 0 references () [0]
Dead Value +JsxV4.C.+make: 0 references () [0]
Live Value +LetPrivate.+y: 0 references () [0]
Live Value +LetPrivate.local_1.+x: 1 references (LetPrivate.res:7:4) [0]
Live Value +ModuleAliases.+testInner2: 0 references () [0]
Expand Down Expand Up @@ -3981,6 +3986,16 @@ File References
<-- line 12
@dead("make") let make = make

Warning Dead Module
File "JsxV4.res", line 3, characters 8-62
JsxV4.C is a dead module as all its items are dead.

Warning Dead Value
File "JsxV4.res", line 4, characters 20-47
C.make is never used
<-- line 4
@react.component @dead("C.make") let make = () => React.null

Warning Dead Module
File "ModuleAliases.res", line 2, characters 10-57
ModuleAliases.Outer.Inner is a dead module as all its items are dead.
Expand Down Expand Up @@ -4505,4 +4520,4 @@ File References
<-- line 96
type variant1Object = | @dead("variant1Object.R") R(payload)

Analysis reported 334 issues (Incorrect Dead Annotation:1, Warning Dead Exception:2, Warning Dead Module:25, Warning Dead Type:89, Warning Dead Value:199, Warning Dead Value With Side Effects:2, Warning Redundant Optional Argument:5, Warning Unused Argument:11)
Analysis reported 336 issues (Incorrect Dead Annotation:1, Warning Dead Exception:2, Warning Dead Module:26, Warning Dead Type:89, Warning Dead Value:200, Warning Dead Value With Side Effects:2, Warning Redundant Optional Argument:5, Warning Unused Argument:11)
18 changes: 18 additions & 0 deletions analysis/reanalyze/examples/deadcode/src/JsxV4.bs.js
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7 changes: 7 additions & 0 deletions analysis/reanalyze/examples/deadcode/src/JsxV4.res
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
@@jsxConfig({version: 4})

module C = {
@react.component let make = () => React.null
}

let _ = <C />